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Samoilenko Z. A. Ivakhnenko N. N. Pushenko E. I. Sycheva V. Ya. Ledenev N. A. Pashchenko A. V. 《Technical Physics》2021,66(6):793-797
Technical Physics - The variation of the Bi1 – xYxFeO3 ceramics atomic structure with yttrium concentration x = 0, 0.10, 0.15, and 0.20 has been analyzed. Ceramic samples have been prepared... 相似文献
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The character of interatomic interaction in ferrite Mg0.54Zn0.46Fe2O4 was studied using the x-ray spectroscopy technique and theoretically. It was found that the electronic structure of samples is rearranged during annealing at high temperatures (1280°C, 0.5–0.8 h). The electronic structure rearrangement was shown to be associated with multilayered ferrite metallization in which alternating layers with metallic and ionic-covalent bonds form. 相似文献
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E. P. Ivakhnenko Yu. V. Koshchienko P. A. Knyazev V. B. Nalbandyan K. A. Lyssenko I. V. Ananyev A. S. Bogomyakov V. I. Minkin 《Russian Journal of Coordination Chemistry》2016,42(4):252-259
The six-coordinate cobalt complexes, C57H63.50N4.50O4Co (IIa), C60H69N5O4Co (IIb), C58H67N3O8Co (IIc), C56H61N5O10Co (IId), C56H63N3O6Co (IIe), C58H66N4O6Co (IIf), and C58H63N7O8Co (IIg), adducts of high-spin tetrahedral Co(II) bis(salicylaldiminates) (C29H24.50N3.50O2Co (Ia), C32H30N4O2Co (Ib), C30H28N2O6Co (Ic), C28H22N4O8Co (Id), C28H24N2O4Co (Ie), C30H27N3O4Co (If), and C30H24N6O6Co (Ig)) and redox-active 2,4,6,8-tetrakis(tert-butyl)phenoxazin-1-one (L), were synthesized and studied for structure and magnetic properties. Complexes IIa–IIg have octahedral structure (CIF files CCDC nos. 1403920 (IIf), 1403922 (IIg)) and exist in the ground low-spin state (ls-CoIII-SQ), which arises upon intramolecular single-electron redox process in the ligand–metal system. The presence of substituents of different nature in the azomethine ligands of IIa–IIg does not induce any significant changes in their magnetic properties. 相似文献
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Mg0.54Zn0.46Fe2O4 ferrites are studied by X-ray diffraction, and different-scale structural groups with short-range, mesoscopic, and long-range atomic orders are revealed in them. These groups are shown to undergo interrelated order-disorder-order phase transitions during high-temperature annealing at 1280°C for 0.5–8.0 h, which are accompanied by maximum changes in the structural parameters.
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Ivakhnenko T. E. Makarova N. I. Ivakhnenko E. P. Chuev I. I. Aldoshin S. M. Minkin V. I. Knyazhanskii M. I. 《Russian Chemical Bulletin》2000,49(12):1981-1987
New photochromic compound 1-p-tolylsulfonylazo-2,4,6,8-tetrakis(tert-butyl)phenoxazine containing the intramolecular hydrogen bond NH...N and the corresponding model structures 2,4,6,8-tetrakis(tert-butyl)-1-(veratroylazo)phenoxazine and 2,4,6,8-tetrakis(tert-butyl)-N-acetyl-1-(p-tolylsulfonylazo)phenoxazine were synthesized and studied. The data obtained suggested the mechanism of the photoreaction resulting in the accumulation of betaine 1-hydroxy-2,4,6,8-tetrakis(tert-butyl)-10-tolylsulfonylphenoxazin-9-one. The photochromic transformations in the molecule under study are due to intramolecular proton phototransfer followed by E–Z-isomerization about the N–N bond and the formation of betaine 1-hydroxy-2,4,6,8-tetrakis(tert-butyl)-10-tolylsulfonylphenoxazin-9-one. The molecular and crystal structure of the photoproduct was studied by X-ray analysis. 相似文献
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A. S. Morkovnik E. P. Ivakhnenko Yu. G. Bogachev B. A. Tertov N. T. Berberova O. Yu. Okhlobystin 《Chemistry of Heterocyclic Compounds》1988,24(2):168-173
The yields of molecular hydrogen in the reactions of benzimidazolines 1,2-dihydropyrimidines with a number of dehydrogenating agents have been determined. The formation of hydrogen is due to breakdown of the cation-radicals of the hydrohetarenes formed in the first stage of the reactions. The EPR spectrum of the cation-radical from 1,3-dimethyl-2-phenylbenzimidazoline has been obtained.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 2, pp. 203–208, February, 1988. 相似文献
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I. V. Karsanov E. N. Ivakhnenko V. S. Khandkarova A. Z. Rubezhov V. I. Minkin O. Yu. Okhlobystin A. I. Prokof'ev M. I. Kabachnik 《Russian Chemical Bulletin》1987,36(8):1707-1713
Conclusions The reaction of 1-H-1-oxo-2,4,6,8-tetrakis(tert-butyl)phenoxazine or the K salt of 1-hydroxy-2,4,6,8-tetrakis(tert-butyl)phenoxazin-10-yl radical with platinum metal compounds forms paramagnetic complexes in which the unpaired electron is delocalized in the ligand. In the case of Pd and Pt allyl compounds the complexes are quite stable and can be isolated.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 8, pp. 1841–1847, August, 1987. 相似文献